package cn.tedu._05weibo.base.filters;

import cn.tedu._05weibo.pojo.vo.UserVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.web.servlet.ServletComponentScan;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
@Slf4j
@WebFilter(filterName="loginCheckFilter",urlPatterns = {"/v1/weibo/insert","/v1/comment/insert"})
public class LoginCheckFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        Filter.super.init(filterConfig);
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        log.debug("过滤器开始校验用户登录状态");
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;

        HttpSession session = request.getSession();

        UserVO userVO = (UserVO) session.getAttribute("user");

        if (userVO != null){
            filterChain.doFilter(request,response);
        } else {
            response.sendRedirect("/login.html");
        }
    }

    @Override
    public void destroy() {
        Filter.super.destroy();
    }
}
